1663103275 has 6 divisors (see below), whose sum is σ = 2062248092. Its totient is φ = 1330482600.

The previous prime is 1663103263. The next prime is 1663103327. The reversal of 1663103275 is 5723013661.

It is not a de Polignac number, because 1663103275 - 2⁵ = 1663103243 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1663103275.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 33262041 + ... + 33262090.

Almost surely, 2^1663103275 is an apocalyptic number.

1663103275 is a deficient number, since it is larger than the sum of its proper divisors (399144817).

1663103275 is an equidigital number, since it uses as much as digits as its factorization.

1663103275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66524141 (or 66524136 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 34.

The square root of 1663103275 is about 40781.1632374556. The cubic root of 1663103275 is about 1184.7855249886.

The spelling of 1663103275 in words is "one billion, six hundred sixty-three million, one hundred three thousand, two hundred seventy-five".